Knight Optical’s complete range of cost effective bandpass dichroic filters offer superior transmission, reflection and absorption characteristics
Dichroic bandpass filters are designed to transmit highly over a specific limited bandwidth while reflecting all other wavelengths. Their design allowed them to isolate the desired wavelength. Dichroic filters offer superior contrast between transmitted and reflected wavelengths. Having negligible absorption they are suitable for high powers and do not show the strong fluorescence of certain glass filters.
Our dichroic bandpass filters are available in a range of wavelengths and are supplied in standard 12.5mm and 25mm diameter or 50mm square types. We are happy to cut and edge filters for non standard sizes to suit your application.
Note:
Wavelength cut-on listed in table is transition cut-on wavelength (T=Tmax/2)
Wavelength cut-off listed in table is transition cut-off wavelength (T=Tmax/2)
Available size: Square 7mm-300mm, Diameter 10mm-400mm
Cutting down or edged to special shapes and sizes at short notice
Mounting of diameters and squares
Available in sets, supplied in a wooden storage box for research and laboratory use
| Name | Type | Wavelength cut-on (nm) 0 degree AOI | CWL (nm) 0 degree AOI | Wavelength cut-off (nm) 0 degree AOI | Diameter (mm) | Length (mm) | Width (mm) | Thickness (mm) | Material | Price | Buy |
| 350FDC12 pdf | Bandpass Dichroic Filter | 305 | 350 | 396 | 12.5 | 1.1 | Borosilicate |
£20.63
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| 350FDC25 pdf | Bandpass Dichroic Filter | 305 | 350 | 396 | 25.0 | 1.1 | Borosilicate |
£22.50
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| 350FDC50 pdf | Bandpass Dichroic Filter | 305 | 350 | 396 | 50.0 | 50.0 | 1.1 | Borosilicate |
£39.60
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| 377FDC12 pdf | Bandpass Dichroic Filter | 351 | 377 | 403 | 12.5 | 1.1 | Borosilicate |
£20.63
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| 377FDC25 pdf | Bandpass Dichroic Filter | 351 | 377 | 403 | 25.0 | 1.1 | Borosilicate |
£22.50
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| 377FDC50 pdf | Bandpass Dichroic Filter | 351 | 377 | 403 | 50.0 | 50.0 | 1.1 | Borosilicate |
£39.60
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| 495FDC12 pdf | Bandpass Dichroic Filter | 465 | 495 | 525 | 12.5 | 1.1 | Borosilicate |
£20.30
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| 495FDC25 pdf | Bandpass Dichroic Filter | 465 | 495 | 525 | 25.0 | 1.1 | Borosilicate |
£21.95
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| 495FDC50 pdf | Bandpass Dichroic Filter | 465 | 495 | 525 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
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| 500FDC12 pdf | Bandpass Dichroic Filter | 480 | 500 | 520 | 12.5 | 1.1 | Borosilicate |
£20.30
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| 500FDC25 pdf | Bandpass Dichroic Filter | 480 | 500 | 520 | 25.0 | 1.1 | Borosilicate |
£21.95
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| 500FDC50 pdf | Bandpass Dichroic Filter | 480 | 500 | 520 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
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| 505FDC12 pdf | Bandpass Dichroic Filter | 485 | 505 | 525 | 12.5 | 1.1 | Borosilicate |
£20.30
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| 505FDC25 pdf | Bandpass Dichroic Filter | 485 | 505 | 525 | 25.0 | 1.1 | Borosilicate |
£21.95
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| 505FDC50 pdf | Bandpass Dichroic Filter | 485 | 505 | 525 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
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| 510FDC12 pdf | Bandpass Dichroic Filter | 467 | 510 | 554 | 12.5 | 1.1 | Borosilicate |
£20.30
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| 510FDC25 pdf | Bandpass Dichroic Filter | 467 | 510 | 554 | 25.0 | 1.1 | Borosilicate |
£21.95
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| 510FDC50 pdf | Bandpass Dichroic Filter | 467 | 510 | 554 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
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| 515FDC12 pdf | Bandpass Dichroic Filter | 500 | 515 | 530 | 12.5 | 1.1 | Borosilicate |
£20.30
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| 515FDC25 pdf | Bandpass Dichroic Filter | 500 | 515 | 530 | 25.0 | 1.1 | Borosilicate |
£21.95
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| 515FDC50 pdf | Bandpass Dichroic Filter | 500 | 515 | 530 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
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| 520FDC12 pdf | Bandpass Dichroic Filter | 504 | 520 | 536 | 12.5 | 1.1 | Borosilicate |
£20.30
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| 520FDC25 pdf | Bandpass Dichroic Filter | 504 | 520 | 536 | 25.0 | 1.1 | Borosilicate |
£21.95
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| 520FDC50 pdf | Bandpass Dichroic Filter | 504 | 520 | 536 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
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| 525FDC12 pdf | Bandpass Dichroic Filter | 500 | 525 | 550 | 12.5 | 1.1 | Borosilicate |
£20.30
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| 525FDC25 pdf | Bandpass Dichroic Filter | 500 | 525 | 550 | 25.0 | 1.1 | Borosilicate |
£21.95
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| 525FDC50 pdf | Bandpass Dichroic Filter | 500 | 525 | 550 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
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| 527FDC12 pdf | Bandpass Dichroic Filter | 510 | 527 | 545 | 12.5 | 1.1 | Borosilicate |
£20.30
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| 527FDC25 pdf | Bandpass Dichroic Filter | 510 | 527 | 545 | 25.0 | 1.1 | Borosilicate |
£21.95
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| 527FDC50 pdf | Bandpass Dichroic Filter | 510 | 527 | 545 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
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| 538FDC12 pdf | Bandpass Dichroic Filter | 512 | 538 | 565 | 12.5 | 1.1 | Borosilicate |
£20.30
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| 538FDC25 pdf | Bandpass Dichroic Filter | 512 | 538 | 565 | 25.0 | 1.1 | Borosilicate |
£21.95
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| 538FDC50 pdf | Bandpass Dichroic Filter | 512 | 538 | 565 | 50.0 | 50.0 | 1.1 | Borosilicate |
£37.95
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| 640FDC12 pdf | Bandpass Dichroic Filter | 600 | 640 | 680 | 12.5 | 1.1 | Sodalime |
£20.30
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| 640FDC25 pdf | Bandpass Dichroic Filter | 600 | 640 | 680 | 25.0 | 1.1 | Sodalime |
£21.95
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| 640FDC50 pdf | Bandpass Dichroic Filter | 600 | 640 | 680 | 50.0 | 50.0 | 1.1 | Sodalime |
£37.95
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| 834FDC12 pdf | Bandpass Dichroic Filter | 801 | 850 | 883 | 12.5 | 0.7 | Borosilicate |
£20.85
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| 834FDC25 pdf | Bandpass Dichroic Filter | 801 | 850 | 883 | 25.0 | 0.7 | Borosilicate |
£23.60
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| 834FDC50 pdf | Bandpass Dichroic Filter | 801 | 850 | 883 | 50.0 | 50.0 | 0.7 | Borosilicate |
£44.00
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